Product Specifications:
Maximum output power: 3W x 2 (5V 4Ω)
Operating Voltage: 5V
Appearance Size: Approx. 1.1 x 0.8 x 0.6 inches (29.5 x 20.2 x 15 mm).
The power audio amplifier board adopts YUan impedance and has a life span of 15 years, and the power audio amplifier board switch can be turned off directly with a reversible hand.
Package Included: 5 x PAM8403 5V Power Audio Amplifier Board Support USB Power 2 Channel 3W
Note: Make sure the power supply is less than 5.5VAnd "+" and "-" do not do the reverse polarity, otherwise it will burn the board.